It doesn't matter that Naples was Greek, as long as pizza as we know it today was a later invention. During the Greek influence period there was indeed a flat

It doesn't matter that Naples was Greek, as long as pizza as we know it today was a later invention. During the Greek influence period there was indeed a flat bread with toppings. That was popular throughout the Mediterranean, including Egypt. So, the question is mainly where to draw the line between what constitutes modern pizza, what constitutes pizza predecessors and what constitutes contemporary evolution of the modern pizza (e.g. pineapple pizza or deep dish Chicago style pizza, which is obviously a thing but it's also quite different from the original modern pizza). Fwiw in recent years I'm noticing a resurgence of the "pinsa romana" which is a variation on the theme and is gaining popularity likely because people just want a bit of change.